83 	int (*read)(struct bq27xxx_device_info *di, u8 reg, bool single);
456 static inline int bq27xxx_read(struct bq27xxx_device_info *di, int reg_index,  in bq27xxx_read()  argument
460 	if (!di || di->regs[reg_index] == INVALID_REG_ADDR)  in bq27xxx_read()
463 	return di->bus.read(di, di->regs[reg_index], single);  in bq27xxx_read()
470 static int bq27xxx_battery_read_soc(struct bq27xxx_device_info *di)  in bq27xxx_battery_read_soc()  argument
474 	soc = bq27xxx_read(di, BQ27XXX_REG_SOC, false);  in bq27xxx_battery_read_soc()
477 		dev_dbg(di->dev, "error reading State-of-Charge\n");  in bq27xxx_battery_read_soc()
486 static int bq27xxx_battery_read_charge(struct bq27xxx_device_info *di, u8 reg)  in bq27xxx_battery_read_charge()  argument
490 	charge = bq27xxx_read(di, reg, false);  in bq27xxx_battery_read_charge()
492 		dev_dbg(di->dev, "error reading charge register %02x: %d\n",  in bq27xxx_battery_read_charge()
497 	if (di->chip == BQ27000 || di->chip == BQ27010)  in bq27xxx_battery_read_charge()
509 static inline int bq27xxx_battery_read_nac(struct bq27xxx_device_info *di)  in bq27xxx_battery_read_nac()  argument
513 	if (di->chip == BQ27000 || di->chip == BQ27010) {  in bq27xxx_battery_read_nac()
514 		flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, true);  in bq27xxx_battery_read_nac()
519 	return bq27xxx_battery_read_charge(di, BQ27XXX_REG_NAC);  in bq27xxx_battery_read_nac()
526 static inline int bq27xxx_battery_read_fcc(struct bq27xxx_device_info *di)  in bq27xxx_battery_read_fcc()  argument
528 	return bq27xxx_battery_read_charge(di, BQ27XXX_REG_FCC);  in bq27xxx_battery_read_fcc()
535 static int bq27xxx_battery_read_dcap(struct bq27xxx_device_info *di)  in bq27xxx_battery_read_dcap()  argument
539 	dcap = bq27xxx_read(di, BQ27XXX_REG_DCAP, false);  in bq27xxx_battery_read_dcap()
542 		dev_dbg(di->dev, "error reading initial last measured discharge\n");  in bq27xxx_battery_read_dcap()
546 	if (di->chip == BQ27000 || di->chip == BQ27010)  in bq27xxx_battery_read_dcap()
558 static int bq27xxx_battery_read_energy(struct bq27xxx_device_info *di)  in bq27xxx_battery_read_energy()  argument
562 	ae = bq27xxx_read(di, BQ27XXX_REG_AE, false);  in bq27xxx_battery_read_energy()
564 		dev_dbg(di->dev, "error reading available energy\n");  in bq27xxx_battery_read_energy()
568 	if (di->chip == BQ27000 || di->chip == BQ27010)  in bq27xxx_battery_read_energy()
580 static int bq27xxx_battery_read_temperature(struct bq27xxx_device_info *di)  in bq27xxx_battery_read_temperature()  argument
584 	temp = bq27xxx_read(di, BQ27XXX_REG_TEMP, false);  in bq27xxx_battery_read_temperature()
586 		dev_err(di->dev, "error reading temperature\n");  in bq27xxx_battery_read_temperature()
590 	if (di->chip == BQ27000 || di->chip == BQ27010)  in bq27xxx_battery_read_temperature()
600 static int bq27xxx_battery_read_cyct(struct bq27xxx_device_info *di)  in bq27xxx_battery_read_cyct()  argument
604 	cyct = bq27xxx_read(di, BQ27XXX_REG_CYCT, false);  in bq27xxx_battery_read_cyct()
606 		dev_err(di->dev, "error reading cycle count total\n");  in bq27xxx_battery_read_cyct()
615 static int bq27xxx_battery_read_time(struct bq27xxx_device_info *di, u8 reg)  in bq27xxx_battery_read_time()  argument
619 	tval = bq27xxx_read(di, reg, false);  in bq27xxx_battery_read_time()
621 		dev_dbg(di->dev, "error reading time register %02x: %d\n",  in bq27xxx_battery_read_time()
636 static int bq27xxx_battery_read_pwr_avg(struct bq27xxx_device_info *di)  in bq27xxx_battery_read_pwr_avg()  argument
640 	tval = bq27xxx_read(di, BQ27XXX_REG_AP, false);  in bq27xxx_battery_read_pwr_avg()
642 		dev_err(di->dev, "error reading average power register  %02x: %d\n",  in bq27xxx_battery_read_pwr_avg()
647 	if (di->chip == BQ27000 || di->chip == BQ27010)  in bq27xxx_battery_read_pwr_avg()
656 static bool bq27xxx_battery_overtemp(struct bq27xxx_device_info *di, u16 flags)  in bq27xxx_battery_overtemp()  argument
658 	if (di->chip == BQ27500 || di->chip == BQ27541 || di->chip == BQ27545)  in bq27xxx_battery_overtemp()
660 	if (di->chip == BQ27530 || di->chip == BQ27421)  in bq27xxx_battery_overtemp()
669 static bool bq27xxx_battery_undertemp(struct bq27xxx_device_info *di, u16 flags)  in bq27xxx_battery_undertemp()  argument
671 	if (di->chip == BQ27530 || di->chip == BQ27421)  in bq27xxx_battery_undertemp()
680 static bool bq27xxx_battery_dead(struct bq27xxx_device_info *di, u16 flags)  in bq27xxx_battery_dead()  argument
682 	if (di->chip == BQ27000 || di->chip == BQ27010)  in bq27xxx_battery_dead()
692 static int bq27xxx_battery_read_health(struct bq27xxx_device_info *di)  in bq27xxx_battery_read_health()  argument
696 	flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, false);  in bq27xxx_battery_read_health()
698 		dev_err(di->dev, "error reading flag register:%d\n", flags);  in bq27xxx_battery_read_health()
703 	if (unlikely(bq27xxx_battery_overtemp(di, flags)))  in bq27xxx_battery_read_health()
705 	if (unlikely(bq27xxx_battery_undertemp(di, flags)))  in bq27xxx_battery_read_health()
707 	if (unlikely(bq27xxx_battery_dead(di, flags)))  in bq27xxx_battery_read_health()
713 static void bq27xxx_battery_update(struct bq27xxx_device_info *di)  in bq27xxx_battery_update()  argument
716 	bool has_ci_flag = di->chip == BQ27000 || di->chip == BQ27010;  in bq27xxx_battery_update()
717 	bool has_singe_flag = di->chip == BQ27000 || di->chip == BQ27010;  in bq27xxx_battery_update()
719 	cache.flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, has_singe_flag);  in bq27xxx_battery_update()
723 		cache.temperature = bq27xxx_battery_read_temperature(di);  in bq27xxx_battery_update()
725 			dev_info(di->dev, "battery is not calibrated! ignoring capacity values\n");  in bq27xxx_battery_update()
734 			if (di->regs[BQ27XXX_REG_TTE] != INVALID_REG_ADDR)  in bq27xxx_battery_update()
735 				cache.time_to_empty = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTE);  in bq27xxx_battery_update()
736 			if (di->regs[BQ27XXX_REG_TTECP] != INVALID_REG_ADDR)  in bq27xxx_battery_update()
737 				cache.time_to_empty_avg = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTECP);  in bq27xxx_battery_update()
738 			if (di->regs[BQ27XXX_REG_TTF] != INVALID_REG_ADDR)  in bq27xxx_battery_update()
739 				cache.time_to_full = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTF);  in bq27xxx_battery_update()
740 			cache.charge_full = bq27xxx_battery_read_fcc(di);  in bq27xxx_battery_update()
741 			cache.capacity = bq27xxx_battery_read_soc(di);  in bq27xxx_battery_update()
742 			if (di->regs[BQ27XXX_REG_AE] != INVALID_REG_ADDR)  in bq27xxx_battery_update()
743 				cache.energy = bq27xxx_battery_read_energy(di);  in bq27xxx_battery_update()
744 			cache.health = bq27xxx_battery_read_health(di);  in bq27xxx_battery_update()
746 		if (di->regs[BQ27XXX_REG_CYCT] != INVALID_REG_ADDR)  in bq27xxx_battery_update()
747 			cache.cycle_count = bq27xxx_battery_read_cyct(di);  in bq27xxx_battery_update()
748 		if (di->regs[BQ27XXX_REG_AP] != INVALID_REG_ADDR)  in bq27xxx_battery_update()
749 			cache.power_avg = bq27xxx_battery_read_pwr_avg(di);  in bq27xxx_battery_update()
752 		if (di->charge_design_full <= 0)  in bq27xxx_battery_update()
753 			di->charge_design_full = bq27xxx_battery_read_dcap(di);  in bq27xxx_battery_update()
756 	if (di->cache.capacity != cache.capacity)  in bq27xxx_battery_update()
757 		power_supply_changed(di->bat);  in bq27xxx_battery_update()
759 	if (memcmp(&di->cache, &cache, sizeof(cache)) != 0)  in bq27xxx_battery_update()
760 		di->cache = cache;  in bq27xxx_battery_update()
762 	di->last_update = jiffies;  in bq27xxx_battery_update()
767 	struct bq27xxx_device_info *di =  in bq27xxx_battery_poll()  local
771 	bq27xxx_battery_update(di);  in bq27xxx_battery_poll()
775 		set_timer_slack(&di->work.timer, poll_interval * HZ / 4);  in bq27xxx_battery_poll()
776 		schedule_delayed_work(&di->work, poll_interval * HZ);  in bq27xxx_battery_poll()
785 static int bq27xxx_battery_current(struct bq27xxx_device_info *di,  in bq27xxx_battery_current()  argument
791 	curr = bq27xxx_read(di, BQ27XXX_REG_AI, false);  in bq27xxx_battery_current()
793 		dev_err(di->dev, "error reading current\n");  in bq27xxx_battery_current()
797 	if (di->chip == BQ27000 || di->chip == BQ27010) {  in bq27xxx_battery_current()
798 		flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, false);  in bq27xxx_battery_current()
800 			dev_dbg(di->dev, "negative current!\n");  in bq27xxx_battery_current()
813 static int bq27xxx_battery_status(struct bq27xxx_device_info *di,  in bq27xxx_battery_status()  argument
818 	if (di->chip == BQ27000 || di->chip == BQ27010) {  in bq27xxx_battery_status()
819 		if (di->cache.flags & BQ27000_FLAG_FC)  in bq27xxx_battery_status()
821 		else if (di->cache.flags & BQ27000_FLAG_CHGS)  in bq27xxx_battery_status()
823 		else if (power_supply_am_i_supplied(di->bat))  in bq27xxx_battery_status()
828 		if (di->cache.flags & BQ27XXX_FLAG_FC)  in bq27xxx_battery_status()
830 		else if (di->cache.flags & BQ27XXX_FLAG_DSC)  in bq27xxx_battery_status()
841 static int bq27xxx_battery_capacity_level(struct bq27xxx_device_info *di,  in bq27xxx_battery_capacity_level()  argument
846 	if (di->chip == BQ27000 || di->chip == BQ27010) {  in bq27xxx_battery_capacity_level()
847 		if (di->cache.flags & BQ27000_FLAG_FC)  in bq27xxx_battery_capacity_level()
849 		else if (di->cache.flags & BQ27000_FLAG_EDV1)  in bq27xxx_battery_capacity_level()
851 		else if (di->cache.flags & BQ27000_FLAG_EDVF)  in bq27xxx_battery_capacity_level()
856 		if (di->cache.flags & BQ27XXX_FLAG_FC)  in bq27xxx_battery_capacity_level()
858 		else if (di->cache.flags & BQ27XXX_FLAG_SOC1)  in bq27xxx_battery_capacity_level()
860 		else if (di->cache.flags & BQ27XXX_FLAG_SOCF)  in bq27xxx_battery_capacity_level()
875 static int bq27xxx_battery_voltage(struct bq27xxx_device_info *di,  in bq27xxx_battery_voltage()  argument
880 	volt = bq27xxx_read(di, BQ27XXX_REG_VOLT, false);  in bq27xxx_battery_voltage()
882 		dev_err(di->dev, "error reading voltage\n");  in bq27xxx_battery_voltage()
907 	struct bq27xxx_device_info *di = power_supply_get_drvdata(psy);  in bq27xxx_battery_get_property()  local
909 	mutex_lock(&di->lock);  in bq27xxx_battery_get_property()
910 	if (time_is_before_jiffies(di->last_update + 5 * HZ)) {  in bq27xxx_battery_get_property()
911 		cancel_delayed_work_sync(&di->work);  in bq27xxx_battery_get_property()
912 		bq27xxx_battery_poll(&di->work.work);  in bq27xxx_battery_get_property()
914 	mutex_unlock(&di->lock);  in bq27xxx_battery_get_property()
916 	if (psp != POWER_SUPPLY_PROP_PRESENT && di->cache.flags < 0)  in bq27xxx_battery_get_property()
921 		ret = bq27xxx_battery_status(di, val);  in bq27xxx_battery_get_property()
924 		ret = bq27xxx_battery_voltage(di, val);  in bq27xxx_battery_get_property()
927 		val->intval = di->cache.flags < 0 ? 0 : 1;  in bq27xxx_battery_get_property()
930 		ret = bq27xxx_battery_current(di, val);  in bq27xxx_battery_get_property()
933 		ret = bq27xxx_simple_value(di->cache.capacity, val);  in bq27xxx_battery_get_property()
936 		ret = bq27xxx_battery_capacity_level(di, val);  in bq27xxx_battery_get_property()
939 		ret = bq27xxx_simple_value(di->cache.temperature, val);  in bq27xxx_battery_get_property()
944 		ret = bq27xxx_simple_value(di->cache.time_to_empty, val);  in bq27xxx_battery_get_property()
947 		ret = bq27xxx_simple_value(di->cache.time_to_empty_avg, val);  in bq27xxx_battery_get_property()
950 		ret = bq27xxx_simple_value(di->cache.time_to_full, val);  in bq27xxx_battery_get_property()
956 		ret = bq27xxx_simple_value(bq27xxx_battery_read_nac(di), val);  in bq27xxx_battery_get_property()
959 		ret = bq27xxx_simple_value(di->cache.charge_full, val);  in bq27xxx_battery_get_property()
962 		ret = bq27xxx_simple_value(di->charge_design_full, val);  in bq27xxx_battery_get_property()
965 		ret = bq27xxx_simple_value(di->cache.cycle_count, val);  in bq27xxx_battery_get_property()
968 		ret = bq27xxx_simple_value(di->cache.energy, val);  in bq27xxx_battery_get_property()
971 		ret = bq27xxx_simple_value(di->cache.power_avg, val);  in bq27xxx_battery_get_property()
974 		ret = bq27xxx_simple_value(di->cache.health, val);  in bq27xxx_battery_get_property()
988 	struct bq27xxx_device_info *di = power_supply_get_drvdata(psy);  in bq27xxx_external_power_changed()  local
990 	cancel_delayed_work_sync(&di->work);  in bq27xxx_external_power_changed()
991 	schedule_delayed_work(&di->work, 0);  in bq27xxx_external_power_changed()
994 static int bq27xxx_powersupply_init(struct bq27xxx_device_info *di,  in bq27xxx_powersupply_init()  argument
999 	struct power_supply_config psy_cfg = { .drv_data = di, };  in bq27xxx_powersupply_init()
1001 	psy_desc = devm_kzalloc(di->dev, sizeof(*psy_desc), GFP_KERNEL);  in bq27xxx_powersupply_init()
1007 	psy_desc->properties = bq27xxx_battery_props[di->chip].props;  in bq27xxx_powersupply_init()
1008 	psy_desc->num_properties = bq27xxx_battery_props[di->chip].size;  in bq27xxx_powersupply_init()
1012 	INIT_DELAYED_WORK(&di->work, bq27xxx_battery_poll);  in bq27xxx_powersupply_init()
1013 	mutex_init(&di->lock);  in bq27xxx_powersupply_init()
1015 	di->bat = power_supply_register_no_ws(di->dev, psy_desc, &psy_cfg);  in bq27xxx_powersupply_init()
1016 	if (IS_ERR(di->bat)) {  in bq27xxx_powersupply_init()
1017 		ret = PTR_ERR(di->bat);  in bq27xxx_powersupply_init()
1018 		dev_err(di->dev, "failed to register battery: %d\n", ret);  in bq27xxx_powersupply_init()
1022 	dev_info(di->dev, "support ver. %s enabled\n", DRIVER_VERSION);  in bq27xxx_powersupply_init()
1024 	bq27xxx_battery_update(di);  in bq27xxx_powersupply_init()
1029 static void bq27xxx_powersupply_unregister(struct bq27xxx_device_info *di)  in bq27xxx_powersupply_unregister()  argument
1039 	cancel_delayed_work_sync(&di->work);  in bq27xxx_powersupply_unregister()
1041 	power_supply_unregister(di->bat);  in bq27xxx_powersupply_unregister()
1043 	mutex_destroy(&di->lock);  in bq27xxx_powersupply_unregister()
1057 	struct bq27xxx_device_info *di = data;  in bq27xxx_battery_irq_handler_thread()  local
1059 	bq27xxx_battery_update(di);  in bq27xxx_battery_irq_handler_thread()
1064 static int bq27xxx_battery_i2c_read(struct bq27xxx_device_info *di, u8 reg,  in bq27xxx_battery_i2c_read()  argument
1067 	struct i2c_client *client = to_i2c_client(di->dev);  in bq27xxx_battery_i2c_read()
1103 	struct bq27xxx_device_info *di;  in bq27xxx_battery_i2c_probe()  local
1120 	di = devm_kzalloc(&client->dev, sizeof(*di), GFP_KERNEL);  in bq27xxx_battery_i2c_probe()
1121 	if (!di) {  in bq27xxx_battery_i2c_probe()
1126 	di->id = num;  in bq27xxx_battery_i2c_probe()
1127 	di->dev = &client->dev;  in bq27xxx_battery_i2c_probe()
1128 	di->chip = id->driver_data;  in bq27xxx_battery_i2c_probe()
1129 	di->bus.read = &bq27xxx_battery_i2c_read;  in bq27xxx_battery_i2c_probe()
1130 	di->regs = bq27xxx_regs[di->chip];  in bq27xxx_battery_i2c_probe()
1132 	retval = bq27xxx_powersupply_init(di, name);  in bq27xxx_battery_i2c_probe()
1137 	schedule_delayed_work(&di->work, 60 * HZ);  in bq27xxx_battery_i2c_probe()
1139 	i2c_set_clientdata(client, di);  in bq27xxx_battery_i2c_probe()
1145 				name, di);  in bq27xxx_battery_i2c_probe()
1166 	struct bq27xxx_device_info *di = i2c_get_clientdata(client);  in bq27xxx_battery_i2c_remove()  local
1168 	bq27xxx_powersupply_unregister(di);  in bq27xxx_battery_i2c_remove()
1171 	idr_remove(&battery_id, di->id);  in bq27xxx_battery_i2c_remove()
1232 static int bq27xxx_battery_platform_read(struct bq27xxx_device_info *di, u8 reg,  in bq27xxx_battery_platform_read()  argument
1235 	struct device *dev = di->dev;  in bq27xxx_battery_platform_read()
1268 	struct bq27xxx_device_info *di;  in bq27xxx_battery_platform_probe()  local
1287 	di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL);  in bq27xxx_battery_platform_probe()
1288 	if (!di)  in bq27xxx_battery_platform_probe()
1291 	platform_set_drvdata(pdev, di);  in bq27xxx_battery_platform_probe()
1293 	di->dev = &pdev->dev;  in bq27xxx_battery_platform_probe()
1294 	di->chip = pdata->chip;  in bq27xxx_battery_platform_probe()
1295 	di->regs = bq27xxx_regs[di->chip];  in bq27xxx_battery_platform_probe()
1298 	di->bus.read = &bq27xxx_battery_platform_read;  in bq27xxx_battery_platform_probe()
1300 	return bq27xxx_powersupply_init(di, name);  in bq27xxx_battery_platform_probe()
1305 	struct bq27xxx_device_info *di = platform_get_drvdata(pdev);  in bq27xxx_battery_platform_remove()  local
1307 	bq27xxx_powersupply_unregister(di);  in bq27xxx_battery_platform_remove()